Hard to tell what kind of settlement you mean. Does it mean "severance pay" at the end of your employment. Unless provided for by contract there is no legal obligation to pay any severance pay and it is a business decision by each company.
Threatening to go to the police unless you receive (a higher) payment would well be construed as extortion, a criminal offense. Be very, very careful or don't do it unless and until you confer with an attorney.
Answered on Feb 27th, 2015 at 1:41 PM